xrRender: GL: shaders compilation fix for integrated Intel cards

Слиты xottab-duty запросил слияние fix/rgl/shaders_on_intel в xd_dev

Created by: vTurbine

This fixes the next errors:

! shader compilation failed: gl\dumb.ps\1024111100110000000000001000001311112311110000000000
! error:  ERROR: 38:137: '' : syntax error: ERROR___INTEGER_CONST_OVERFLOW

! shader compilation failed: gl\deffer_impl_flat_d.ps\1024111100110000000000001000001311112311110000000000
! error:  ERROR: 65:15: 'mask' : failed to expand macro